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US Patent: 1,382,460
Micrometer Protractor
Patentee:
Knut Berglof (exact or similar names) - Buffalo, NY

USPTO Classifications:
33/426

Tool Categories:
layout tools : protractors

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jun. 28, 1920
Granted: Jun. 21, 1921

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Ralph Brendler
Description:
This protractor features an unusual micro-adjustment mechanism.

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